Keith Thurman knows what it is like to share the ring with both Manny Pacquiao and Mario Barrios. Pacquiao makes a sensational return to boxing at the age of 46 this weekend when he challenges Barrios for his WBC welterweight title at the MGM Grand in Las Vegas.

The Pacquiao Files LAS VEGAS – Outside boxing, Manny Pacquiao and Mike Tyson are on opposing ends of the spectrum. But inside the ring, the two legends are cut from the same cloth–that’s how Mario Barrios’ trainer Bob Santos described Pacquiao.